SUMMARY : 



The present contribution to the knowledge of Brazilian Snakes constists of two 

 partis. 



In the first part, the Author studies the collection of &nakes received from Mu- 

 seu Paraense (Pará, Brazil), fo-r identification. This collection includes 46 species 

 with 139 specimens nearly all from the State of Pará. 



A list is still added, of the species wnoee presence was registered im Pará, 

 which, however, are not included in the present collection. 



In the second part, two new species of Brazilian Snakes are described: Tachymenis 

 brasiliensis and Drymobius brazili. 



.Characteristics of the T. brasiliensis: Sc. 17; V. 130--144; A. 2; C. 36-46 pairs; 

 8 supralabials, 3rd., 4th and 5th in contact with the eye. Two dark stripes above, 

 joining at the head and at the posterior part of the tail and separated on the 

 vertebral line by a clear space one and two halif scale© width. Another dark stripe 

 running each side and separated a'b'ove along the 4th scale row. Lower parts 

 with two or three bla'Ck longitudinal lines. This species seems to be very appro- 

 ximated to T. aifinis. 



Characteristics of the D, brazili: Sc. 17; V. 188-194; A. 1 (rarely 2); C. 116-123 

 pairs; 8 eupralabials, 4th and 5th in contact with the eye; 5 lower labials in con- 

 tact with the chin-shields; 5th larger and the only one in contact with the poste- 

 rior chin-shields. Near to D. boddaerti. 



